crazy scenes on russia's reckless roads. recorded on dash cams that are exploding in popularity in russia. they used for insurance reasons but the madness they capturing goes viral on youtube. the cringe-worthy crashes, the death-defying smashes, and the truly bizarre. road warriors, from helicopters, to tanks. from roadside fighting, to fighter jets. this camera even caught a plane crash. if cameras aren't just good for creating youtube gold, they use it for trying to figure out who it as fault in an accident. >> this man says his dash cam saved him after a hit-and-run. police were able to use the video to look for the culprit. >> the cameras also catch crooked cops. but insurance scams, like this man who may have been trying to get hit by a car. we took one for a test drive with the editor and chief of auto magazine. >> how do i explain this to americans? >> the reason why you see, because device like this become more' more popular. >> the says the dash cams are shaming drivers into better behavior. >> if you compare to fi